package com.distributor.common;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

/**
 * Created by zhurusen on 2018/10/16
 */
public class HttpRequest {

    /**
     * 向指定URL发送GET方法的请求
     *
     * @param url   发送请求的URL
     * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return URL 所代表远程资源的响应结果
     */
    public static String sendGet(String url, String param) {
        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;

            System.out.println("【请求Get的URL】" + urlNameString);
            URL realUrl = new URL(urlNameString);
            // 打开和URL之间的连接
            URLConnection connection = realUrl.openConnection();
            // 设置通用的请求属性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 建立实际的连接
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
//            for (String key : map.keySet()) {
//                System.out.println(key + "--->" + map.get(key));
//            }
            // 定义 BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
//            System.out.println("发送GET请求出现异常！" + e);
            e.printStackTrace();
        }
        // 使用finally块来关闭输入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }

    /**
     * 向指定 URL 发送POST方法的请求
     *
     * @param url   发送请求的 URL
     * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！" + e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result;
    }

    public static void main(String[] args) {

//        String sign_card = DigestUtils.md5Hex("action=stationlist&companycode=GX109712753846c72844eeb686181404f4d980");
//
//        String html = sendPost("http://testapi.moktrip.com/trainapi.ashx", "param={'action':'stationlist','companycode':'GX1097','sign':'" + sign_card + "'}");
//        System.out.println("=====火车API====" + html);

        //---------------------1------------------------------------获取城市标志地标和名称-------------------------------------------------------
        String sign_getmarkplace = DigestUtils.md5Hex("getmarkplaceGX109712753846c72844eeb686181404f4d98010110");
        String param = "param={\"action\":\"getmarkplace\",\"companycode\":\"GX1097\",\"key\":\"12753846c72844eeb686181404f4d980\",\"sign\":\"" + sign_getmarkplace + "\",\"cityid\":\"101\",\"count\":\"10\"}\n";
        String html_getmarkplace = sendGet("http://testapi.moktrip.com/hotelapi.ashx", param);
        System.out.println("====获取城市标志地标和名称====" + html_getmarkplace);
        //------------------------------------------------------------------------------------------------------------------------------------


        //---------------------1------------------------------------查询关键字返回地标和酒店名称-------------------------------------------------------
        String sign_queryhotelkw = DigestUtils.md5Hex("queryhotelkwGX109712753846c72844eeb686181404f4d98010110");
        String param_queryhotelkw = "param={\"action\":\"getmarkplace\",\"companycode\":\"GX1097\",\"key\":\"12753846c72844eeb686181404f4d980\",\"sign\":\"" + sign_queryhotelkw + "\",\"cityid\":\"101\",\"count\":\"10\"}\n";
        String html_queryhotelkw = sendGet("http://testapi.moktrip.com/hotelapi.ashx", param);
        System.out.println("====获取城市标志地标和名称====" + html_getmarkplace);
        //------------------------------------------------------------------------------------------------------------------------------------



    }
}
